Composition of matter.



UNITED STATES Patented November 8, 1904.

PATENT OFFICE.

COMPOSITION OF MATTER.

SPECIFICATION forming part of Letters Patent No. 774,156, dated November 8, 1904.

Application filed March 19, 1904. Serial No. 199,054. (No specimens.)

To all whom it may concern:

Be it known that I, LUDWIK CHAMPOWIO a citizen of the United States, residing in New Britain, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Compositions of Watter, of which the following is a specification.

This invention relates to and has for an object to provide a composition of matter for the securement of various devices in sockets or recesses, and more particularly for fastening the shanks into door-knobs.

In securing the shanks to door-knobs it is desirable to employ some material which may be melted and poured into the cavity in the knob around the shank, and it is desirable to have some material which will harden quickly and hold the parts firmly, and as such manufacture is frequently carried on it is desirable to have a material for such purpose which can be readily melted and put into the condition for pouring it into the cavities. I have found by practice that amixture having the following component parts produces good results and can be readily melted by steam, namely: sulfur and black-lead, or sulfur, blacklead, and sand, particularly such sand as has been used in foundry-work and has intermixed with it more or less iron in finely-comminuted particles; molding-sand, which has been used for rolling or tumbling iron castings, or any other sand of the requisite fineness and sharpness of grain. The addition of the sand materially increases the strength and durability of the mixture.

By practice I have found that suitable proportions for such mixture are sixty-six parts of sulfur, nine parts of black-lead, and four parts of sand.

Having thus described my invention, I 

